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--- icnd1:nat [2024/03/14 07:51]
114.119.158.167 old revision restored (2023/10/06 23:40)
+++ icnd1:nat [2024/04/27 08:10] (current)
52.211.143.139 old revision restored (2023/11/01 22:20)
@@ Line 53: / Line 53: @@
 ===== Chapter Questions =====
 ==== One ====
-**Examine the following show command output on a router configured for dynamic NAT:**
+Examine the following show command output on a router configured for dynamic NAT:
 <code>
 -- Inside Source
@@ Line 64: / Line 64: @@
     type generic, total addresses 7, allocated 7 (100%), misses 965
+Users are complaining about not being able to reach the Internet. Which of the following is the most likely cause?
 </code>
-**Users are complaining about not being able to reach the Internet. Which of the following is the most likely cause?**
-  * ''**The NAT pool does not have enough entries to satisfy all requests.**''
+The NAT pool does not have enough entries to satisfy all requests.
-  * The problem is not related to NAT, based on the information in the command output.
-  * The command output does not supply enough information to identify the problem.
-  * Standard ACL 1 cannot be used; an extended ACL must be used.
-You answered this question correctly. ×
-**Explanation:**
+The problem is not related to NAT, based on the information in the command output.
-The last line mentions that the pool has seven addresses, with all seven allocated, with the misses counter close to 1000 - meaning that close to 1000 new flows were rejected because of insufficient space in the NAT pool.
-==== Two ====
-**Which of the following summarized subnets represent routes that could have been created for CIDR’s goal to reduce the size of Internet routing tables?**
+The command output does not supply enough information to identify the problem.
-  * 200.1.1.0 255.255.255.0
-  * ''**200.1.0.0 255.255.0.0**''
-  * 10.1.0.0 255.255.0.0
-  * 10.0.0.0 255.255.255.0
-You answered this question correctly. ×
-**Explanation:**
+Standard ACL 1 cannot be used; an extended ACL must be used.
-CIDR’s original intent was to allow the summarization of multiple Class A, B, and C networks to reduce the size of Internet routing tables. Of the answers, only 200.1.0.0 255.255.0.0 summarizes multiple networks.
-==== Three ====
-**With static NAT, performing translation for inside addresses only, what causes NAT table entries to be created?**
-  * ''**Configuration using the ip nat inside source command**''
-  * The first packet from the inside network to the outside network
-  * Configuration using the ip nat outside source command
-  * The first packet from the outside network to the inside network
 You answered this question correctly. ×
-**Explanation:
+Explanation:
-**With static NAT, the entries are statically configured. Because the question mentions translation for inside addresses, the inside keyword is needed in the command.
+The last line mentions that the pool has seven addresses, with all seven allocated, with the misses counter close to 1000 - meaning that close to 1000 new flows were rejected because of insufficient space in the NAT pool.
-==== Four ====
-**Which of the following are not private addresses according to RFC 1918? (Choose two answers.)**
-  * ''**172.33.1.1**''
-  * 172.31.1.1
-  * ''**191.168.1.1**''
-  * 10.255.1.1
-  * 10.1.255.1
-Select 2 answers
-You answered this question correctly. ×
-**Explanation**:
-RFC 1918 identifies private network numbers. It includes Class A network 10.0.0.0, Class B networks 172.16.0.0 through 172.31.0.0, and Class C networks 192.168.0.0 through 192.168.255.0.
-==== Five ====
-**NAT has been configured to translate source addresses of packets for the inside part of the network, but only for some hosts as identified by an access control list. Which of the following commands indirectly identifies the hosts?**
-ip nat pool barney 200.1.1.1 200.1.1.254 netmask 255.255.255.0
-ip nat inside 200.1.1.1 200.1.1.2
-ip nat inside
-''**ip nat inside source list 1 pool barney**''
-You answered this question correctly. ×
-**Explanation**:
-The list 1 parameter references an IP ACL, which matches packets, identifying the inside local addresses.

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